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1、网络出版时间：2014-03-2815:34网络出版地址：http://www.cnki.net/kcms/detail/11.1946.TQ.20140328.1534.002.html固体碱负载Ru催化山梨醇氢解制备低炭二元醇周静红*，王雪峰，刘国才，隋志军，周兴贵，袁渭康（华东理工大学化学工程联合国家重点实验室，上海200237）摘要：采用羟基磷灰石和镁铝水滑石两种固体碱为载体制备了Ru催化剂，通过N2物理吸附、扫描电子显微镜、高分辨透射显微镜、X射线衍射分析表征了形貌和物理化学性能，并与纳米碳纤维负载的Ru催化剂
2、（Ru/CNFs）在无碱促进剂及有碱促进剂存在下催化山梨醇氢解制备二元醇的活性进行了比较。结果表明，固体碱负载的Ru催化剂，在无碱促进剂的条件下在山梨醇氢解中均表现出与Ru/CNFs相当的催化活性。其中镁铝水滑石负载的Ru催化剂在优化的制备条件下，其催化活性优于加入碱促进剂的Ru/CNFs催化体系，乙二醇和丙二醇等目标产物选择性更高，副产物减少，同时还免除了碱助剂的后续分离和回收，具有良好的应用前景。关键词：生物质；Ru催化剂；固体碱；加氢；乙二醇；丙二醇中图分类号：TQ426.65文献标志码：A文章编号：00-0000
3、-00SolidbasesupportedRucatalystsforsorbitolhydrogenolysisZHOUJinghong*,WANGXuefeng,LIUGuocai,SUIZhijun,ZHOUXinggui,YUANWeikang(StateKeyLaboratoryofChemicalEngineering,EastChinaUniversityofScienceandTechnology,130MeilongRoad,Shanghai200237,ChinaAbstract：Hydrogenol
4、ysisofbiomass-derivedsorbitolintoethyleneandpropyleneglycols,analternativerouteforpetroleumbasedprocess,usuallytakesplaceovermetalcatalystwithabasepromoter.Thepresenceofsolublebasesintroducesadditionalissuesfortheirseparationandrecovery,increasingthecomplexityand
5、operatingcostoftheprocess.Moreover,thesebaseadditivessometimesresultintheformationofmoreside-products.HereweinvestigatedRusupportedonvarioussolidbasestofacilitatecatalystrecoveryandrecycle.Rucatalystssupportedon2solidbases,hydrotalcite(HT)andhydroxyapatite(HAP),w
6、erepreparedandinvestigatedforsorbitolhydrogenolysisactivityinbase-freeaqueoussolution,andtheirperformancewascomparedwiththatofRucatalystsupportedoncarbonnanofibers(Ru/CNFs),withandwithoutpromotionbyCaO.Thephysico-chemicalpropertiesofboththesupportsandthesupported
7、RucatalystswerecharacterizedbySEM,N2physisorption,XRD,TEMandCO2-TPD.TheresultsindicatedthatRuparticleswelldispersedonbasicsupportandshowedasgoodactivityasRu/CNFscatalystsinsorbitolhydrogenolysis.TheRucatalystusingHTcalcinedat500°Casasupportshowedbestcatalyticperf
8、ormancewithpromotedsorbitolconversion,higherselectivitiestothedesiredglycolsandfewerbyproducts.Asaresult,Ru/HTisbelievedtobeapromisingcatalystforsorbitolhydrog
